Camera optical lens

ABSTRACT

Discloses is a camera optical including nine lenses, and the nine lenses from an object side to an image side are: a first lens with a negative refractive power, a second lens with a positive refractive power, a third lens with a positive refractive power, a fourth lens with a positive refractive power, a fifth lens with a positive refractive power, a sixth lens with a negative refractive power, a seventh lens with a negative refractive power, an eighth lens with a positive refractive power and an ninth lens with a negative refractive power. The camera optical lens satisfies: −1.90≤f1/f≤−0.70; 1.50≤d5/d6≤8.00; −18.00≤f6/f≤−3.00. The camera optical lens has good optical performance, and meets the design requirements of a large aperture wide-angle and ultra-thin.

TECHNICAL FIELD

The present disclosure relates to the field of optical lens, particular,to a camera optical lens suitable for handheld devices, such as smartphones and digital cameras, and imaging devices, such as monitors or PClenses.

BACKGROUND

With the emergence of smart phones in recent years, the demand forminiature camera lens is increasing day by day, but in general thephotosensitive devices of camera lens are nothing more than a chargecoupled device (CCD) or a complementary metal-oxide semiconductor sensor(CMOS sensor), and as the progress of the semiconductor manufacturingtechnology makes the pixel size of the photosensitive devices becomesmaller, plus the current development trend of electronic productstowards better functions and thinner and smaller dimensions, miniaturecamera lens with good imaging quality therefore have become a mainstreamin the market.

In order to obtain better imaging quality, the lens that istraditionally equipped in mobile phone cameras adopts a structure of athree-piece, four-piece, or even five-piece, or six-piece lens. Also,with the development of technology and the increase of the diversedemands of users, and as the pixel area of photosensitive devices isbecoming smaller and smaller and the requirement of the system on theimaging quality is improving constantly, a nine-piece lens structuregradually appears in lens designs. The present nine-piece lens structuregenerally has good optical performance, however an optical focal length,lens spacing, a lens shape thereof are still arranged unreasonably, sothat the nine-piece lens structure cannot meet a design requirements ofa large aperture, ultra-thin and wide-angle in the case when the lensstructure remains good optical characteristics.

SUMMARY

Some embodiments of this disclosure provide a camera optical lens,comprising nine lenses, the nine lenses from an object side to an imageside being: a first lens having a negative refractive power; a secondlens having a positive refractive power; a third lens having a positiverefractive power; a fourth lens with a positive refractive power; afifth lens with a positive refractive power; a sixth lens with anegative refractive power; a seventh lens with a negative refractivepower; an eighth lens with a positive refractive power; and an ninthlens with a negative refractive power; wherein the camera optical lenssatisfies following conditions: −1.90≤f1/f≤−0.70; 1.50≤d5/d6≤8.00;−18.00≤f6/f≤−3.00; where, f denotes a focal length of the camera opticallens; f1 denotes a focal length of the first lens; f6 denotes a focallength of the sixth lens; d5 denotes an on-axis thickness of the thirdlens; and d6 denotes an on-axis distance from an image-side surface ofthe third lens to an object-side surface of the fourth lens.

As an improvement, the camera optical lens further satisfies followingconditions: 1.50≤f5/f4≤8.00; where f4 denotes a focal length of thefourth lens; f5 denotes a focal length of the fifth lens.

As an improvement, the camera optical lens further satisfies followingconditions: −0.87≤(R1+R2)/(R1−R2)≤0.82; 0.06≤d1/TTL≤0.20; where, R1denotes a central curvature radius of an object-side surface of thefirst lens; R2 denotes a central curvature radius of an image-sidesurface of the first lens; d1 denotes an on-axis thickness of the firstlens; TTL denotes a total track length of the camera optical lens.

As an improvement, the camera optical lens further satisfies followingconditions: 0.64≤f2/f≤9.47; −17.80≤(R3+R4)/(R3−R4)≤−2.04;0.03≤d3/TTL≤0.09; where f2 denotes a focal length of the second lens; R3denotes a central curvature radius of an object-side surface of thesecond lens; R4 denotes a central curvature radius of an image-sidesurface of the second lens; d3 denotes an on-axis thickness of thesecond lens; TTL denotes a total track length of the camera opticallens.

As an improvement, the camera optical lens further satisfies followingconditions: 0.89≤f3/f≤4.36; −1.41≤(R5+R6)/(R5−R6)≤−0.04;0.02≤d5/TTL≤0.13; where f3 denotes a focal length of the third lens; R5denotes a central curvature radius of an object-side surface of thethird lens; R6 denotes a central curvature radius of an image-sidesurface of the third lens; TTL denotes a total track length of thecamera optical lens.

As an improvement, the camera optical lens further satisfies followingconditions: 1.31≤f4/f≤4.89; 0.31≤(R7+R8)/(R7−R8)≤1.97; 0.03≤d7/TTL≤0.10;where f4 denotes a focal length of the fourth lens; R7 denotes a centralcurvature radius of an object-side surface of the fourth lens; R8denotes a central curvature radius of an image-side surface of thefourth lens; d7 denotes an on-axis thickness of the fourth lens; TTLdenotes a total track length of the camera optical lens.

As an improvement, the camera optical lens further satisfies followingconditions: 2.28≤f5/f≤37.06; 0.33≤(R9+R10)/(R9−R10)≤32.67;0.03≤d9/TTL≤0.10; where f5 denotes a focal length of the fifth lens; R9denotes a central curvature radius of an object-side surface of thefifth lens; R10 denotes a central curvature radius of an image-sidesurface of the fifth lens; d9 denotes an on-axis thickness of the fifthlens; TTL denotes a total track length of the camera optical lens.

As an improvement, the camera optical lens further satisfies followingconditions: 0.73≤(R11+R12)/(R11−R12)≤19.63; 0.02≤d11/TTL≤0.06; where R11denotes a central curvature radius of an object-side surface of thesixth lens; R12 denotes a central curvature radius of an image-sidesurface of the sixth lens; d11 denotes an on-axis thickness of the sixthlens; TTL denotes a total track length of the camera optical lens.

As an improvement, the camera optical lens further satisfies followingconditions: −11.01≤f7/f≤−2.81; 0.52≤(R13+R14)/(R13−R14)≤2.18;0.03≤d13/TTL≤0.12; where f7 denotes a focal length of the seventh lens;R13 denotes a central curvature radius of an object-side surface of theseventh lens; R14 denotes a central curvature radius of an image-sidesurface of the seventh lens; d13 denotes an on-axis thickness of theseventh lens; TTL denotes a total track length of the camera opticallens.

As an improvement, the camera optical lens further satisfies followingconditions: 0.46≤f8/f≤1.46; 0.27≤(R15+R16)/(R15−R16)≤0.92;0.04≤d15/TTL≤0.15; where f8 denotes a focal length of the eighth lens;R15 denotes a central curvature radius of an object-side surface of theeighth lens; R16 denotes a central curvature radius of an image-sidesurface of the eighth lens; d15 denotes an on-axis thickness of theeighth lens; TTL denotes a total track length of the camera opticallens.

As an improvement, the camera optical lens further satisfies followingconditions: −3.70≤f9/f≤−0.94; 1.36≤(R17+R18)/(R17−R18)≤4.89;0.03≤d17/TTL≤0.09; where f9 denotes a focal length of the ninth lens;R17 denotes a central curvature radius of an object-side surface of theninth lens; R18 denotes a central curvature radius of an image-sidesurface of the ninth lens; d17 denotes an on-axis thickness of the ninthlens; TTL denotes a total track length of the camera optical lens.

BRIEF DESCRIPTION OF DRAWINGS

In order to make more clearly technical solutions of embodiments in thepresent disclosure, accompanying drawings, which are used in thedescription of the embodiments, will be described briefly in thefollowing. Obviously, the accompanying drawings in the followingdescription are only some examples of the present disclosure. Thoseskilled in the art, without creative work, may obtain other drawingsbased on these drawings.

FIG. 1 is a schematic diagram of a structure of a camera optical lensaccording to a first embodiment of the present disclosure.

FIG. 2 is a schematic diagram of a longitudinal aberration of the cameraoptical lens shown in FIG. 1.

FIG. 3 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 1.

FIG. 4 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 1.

FIG. 5 is a schematic diagram of a structure of a camera optical lensaccording to a second embodiment of the present disclosure.

FIG. 6 is a schematic diagram of a longitudinal aberration of the cameraoptical lens shown in FIG. 5.

FIG. 7 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 5.

FIG. 8 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 5.

FIG. 9 is a schematic diagram of a structure of a camera optical lensaccording to a third embodiment of the present disclosure.

FIG. 10 is a schematic diagram of a longitudinal aberration of thecamera optical lens shown in FIG. 9.

FIG. 11 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 9.

FIG. 12 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 9.

DETAILED DESCRIPTION OF EMBODIMENTS

To make the objects, technical solutions, and advantages of the presentdisclosure clearer, embodiments of the present disclosure are describedin detail with reference to accompanying drawings in the following. Aperson of ordinary skill in the art can understand that, in theembodiments of the present disclosure, many technical details areprovided to make readers better understand the present disclosure.However, even without these technical details and any changes andmodifications based on the following embodiments, technical solutionsrequired to be protected by the present disclosure can be implemented.

Frist Embodiment

Referring to the accompanying drawings, the present disclosure providesa camera optical lens 10. FIG. 1 shows the camera optical lens 10 of thefirst embodiment of the present disclosure, and the camera optical lens10 includes nine lenses. Specifically, the camera optical lens 10includes, from an object side to an image side: a first lens L1, asecond lens L2, an aperture S1, a third lens L3, a fourth lens L4, afifth lens L5, a sixth lens L6, a seventh lens L7, an eighth lens L8 andan ninth lens L9. An optical element, such as an optical filter GF, maybe arranged between the ninth lens L9 and an image surface S1.

In this embodiment, the first lens L1 has a negative refractive power,the second lens L2 has a positive refractive power, the third lens L3has a positive refractive power, the fourth lens L4 has a positiverefractive power, the fifth lens L5 has a positive refractive power, thesixth lens L6 has a negative refractive power, the seventh lens L7 has anegative refractive power, the eighth lens L8 has a positive refractivepower, and the ninth lens L9 has a negative refractive power.

In this embodiment, the second lens L2 has a positive refractive power,conducing to improve the performance of the optical system.

In this embodiment, the first lens L1, the second lens L2, the thirdlens L3, the fourth lens L4, the fifth lens L5, the sixth lens L6, theseventh lens L7, the eighth lens L8, and the ninth lens L9 are all madeof plastic material. In other embodiments, the lenses may also be madeof other materials.

In this embodiment, a focal length of the camera optical lens 10 isdefined as f, and a focal length of the first lens L1 is defined as f1.The camera optical lens 10 satisfies a condition of −1.90≤f1/f≤−0.70,which specifies a ratio between the focal length f1 of the first lens L1and the focal length f of the camera optical lens 10, thereby conducingto correct the system aberration and improve imaging quality in thisrange.

An on-axis thickness of the third lens L3 is defined as d5, an on-axisdistance from an image-side surface of the third lens L3 to anobject-side surface of the fourth lens L4 is defined as d6, and thecamera optical lens 10 further satisfies a condition of 1.50≤d5/d6≤8.00,which specifies a ratio between the on-axis thickness d5 of the thirdlens L3 and an on-axis distance d6 from an image-side surface of thethird lens L3 to an object-side surface of the fourth lens L4, therebyconducing to process and assemble lens in this range.

A focal length of the camera optical lens 10 is defined as f, a focallength of the sixth lens L6 is defined as f6, and the camera opticallens satisfies a condition of −18.00≤f6/f≤−3.00. In this way, arefractive power is distributed appropriately, so that the system canattain a better imaging quality and a lower sensitivity.

A focal length of the fourth lens L4 is defined as f4, a focal length ofthe fifth lens L5 is defined as f5, and the camera optical lenssatisfies a condition of 1.50≤f5/f4≤8.00, which specifies a ratiobetween the focal length f5 of the fifth lens L5 and the focal length f4of the fourth lens L4, thus advantageously correcting aberration andimproving imaging quality in this rang.

In this embodiment, the object-side surface of the first lens L1 isconcave in a paraxial region, and the image-side surface of the firstlens L1 is concave in the paraxial region.

A central curvature radius of the object-side surface of the first lensL1 is defined as R1, a central curvature radius of the image-sidesurface of the first lens L1 is defined as R2, and the camera opticallens satisfies a condition of −0.87≤(R1+R2)/(R1−R2)≤0.82, whichreasonably controls a shape of the first lens L1, so that the first lensL1 can effectively correct system spherical aberration. Preferably, thecamera optical lens 10 satisfies a condition of−0.55≤(R1+R2)/(R1−R2)≤0.66.

An on-axis thickness of the first lens L1 is defined as d1, a totaltrack length of the camera optical lens 10 is defined as TTL, and thecamera optical lens 10 further satisfies a condition of0.06≤d1/TTL≤0.20, conducing to realize an ultra-thin effect in thisrange. Preferably, the camera optical lens 10 further satisfies acondition of 0.09≤d1/TTL≤0.16.

In this embodiment, an object-side surface of the second lens L2 isconvex in the paraxial region, and an image-side surface of the secondlens L2 is concave in the paraxial region.

The focal length of the camera optical lens 10 is defined as f, a focallength of the second lens L2 is defined as f2, and the camera opticallens 10 further satisfies a condition of 0.64≤f2/f≤9.47. In this way, apositive refractive power of the second lens L2 is controlled within areasonable range, so that it is beneficial to correct the aberration ofthe optical system. Preferably, the camera optical lens 10 furthersatisfies a condition of 1.03≤f2/f≤7.57.

A central curvature radius of the object-side surface of the second lensL2 is defined as R3, a central curvature radius of the image-sidesurface of the second lens L2 is defined as R4, and the camera opticallens 10 further satisfies a condition of −17.80≤(R3+R4)/(R3−R4)≤−2.04,which specifies a shape of the second lens L2. Within this range, adevelopment towards ultra-thin and wide-angle lenses would facilitatecorrecting the problem of an on-axis aberration. Preferably, the cameraoptical lens 10 further satisfies a condition of−11.12≤(R3+R4)/(R3−R4)≤−2.56.

A total track length of the camera optical lens 10 is defined as TTL, anon-axis thickness of the second lens L2 is defined as d3, and the cameraoptical lens 10 satisfies a condition of 0.03≤d3/TTL≤0.09. Within thisrange, it is beneficial to achieve ultra-thin lenses. Preferably, thecamera optical lens 10 further satisfies a condition of0.04≤d3/TTL≤0.07.

In an embodiment, an object-side surface of the third lens L3 is convexin the paraxial region, and an image-side surface of the third lens L3is convex in the paraxial region.

The focal length of the camera optical lens 10 is defined as f, a focallength of the third lens L3 is defined as f3, and the camera opticallens 10 further satisfies a condition of 0.89≤f3/f≤4.36. In this way, arefractive power is distributed appropriately, so that the cameraoptical lens can attain a better imaging quality and a lowersensitivity. Preferably, the camera optical lens 10 further satisfies acondition of 1.43≤f3/f≤3.49.

A central curvature radius of the object-side surface of the third lensL3 is defined as R5, a central curvature radius of the image-sidesurface of the third lens L3 is defined as R6, and the camera opticallens 10 further satisfies a condition of −1.41≤(R5+R6)/(R5−R6)≤−0.04;0.02≤d5/TTL≤0.13, which specifies a shape of the third lens L3. Withinthis range, the deflection of light passing through the lens can beeased and aberrations can be effectively reduced. Preferably, the cameraoptical lens 10 further satisfies a condition of−0.88≤(R5+R6)/(R5−R6)≤−0.05.

The total track length of the camera optical lens 10 is defined as TTL,an on-axis thickness of the third lens L3 is defined as d5, and thecamera optical lens 10 further satisfies a condition of0.02≤d5/TTL≤0.13. This can facilitate achieving ultra-thin lenses.Preferably, the camera optical lens 10 further satisfies a condition of0.04≤d5/TTL≤0.11.

In an embodiment, an object-side surface of the fourth lens L4 is convexin the paraxial region, and an image-side surface of the fourth lens L4is convex in the paraxial region.

The focal length of the camera optical lens 10 is defined as f, a focallength of the fourth lens L4 is defined as f4, and the camera opticallens 10 further satisfies a condition of 1.31≤f4/f≤4.89. In this way, arefractive power is distributed appropriately, so that the cameraoptical lens can attain a better imaging quality and a lowersensitivity. Preferably, the camera optical lens 10 further satisfies acondition of 2.10≤f4/f≤3.91.

A central curvature radius of an object-side surface of the fourth lensL4 is defined as R7, a central curvature radius of an image-side surfaceof the fourth lens L4 is defined as R8, and the camera optical lens 10further satisfies a condition of 0.31≤(R7+R8)/(R7−R8)≤1.97, whichspecifies a shape of the fourth lens L4. Within this range, adevelopment towards ultra-thin and wide-angle lens would facilitatecorrecting problems such as an off-axis aberration. Preferably, thecamera optical lens 10 further satisfies a condition of0.49≤(R7+R8)/(R7−R8)≤1.58.

The total track length of the camera optical lens 10 is defined as TTL,an on-axis thickness of the fourth lens L4 is defined as d7, and thecamera optical lens 10 further satisfies a condition of0.03≤d7/TTL≤0.10. Within this range, this can facilitate achievingultra-thin lenses. Preferably, the camera optical lens 10 furthersatisfies a condition of 0.05≤d7/TTL≤0.08.

In an embodiment, an object-side surface of the fifth lens L5 is concavein the paraxial region, and an image-side surface of the fifth lens L5is convex in the paraxial region.

The focal length of the camera optical lens 10 is defined as f, a focallength of the fifth lens L5 is defined as f5, and the camera opticallens 10 further satisfies a condition of 2.28≤f5/f≤37.06, which caneffectively make a light angle of the camera optical lens 10 gentle andreduce a tolerance sensitivity. Preferably, the camera optical lens 10further satisfies a condition of 3.64≤f5/f≤29.65.

A central curvature radius of the object-side surface of the fifth lensL5 is defined as R9, a central curvature radius of the image-sidesurface of the fifth lens L5 is defined as R10, and the camera opticallens 10 further satisfies a condition of 0.33≤(R9+R10)/(R9−R10)≤32.67,which specifies a shape of the fifth lens L5. Within this range, adevelopment towards ultra-thin and wide-angle lenses can facilitatecorrecting a problem of the off-axis aberration. Preferably, the cameraoptical lens 10 further satisfies a condition of0.54≤(R9+R10)/(R9−R10)≤26.13.

The total track length of the camera optical lens 10 is defined as TTL,an on-axis thickness of the fifth lens L5 is defined as d9, and thecamera optical lens 10 further satisfies a condition of0.03≤d9/TTL≤0.10. Within this range, this can facilitate achievingultra-thin lenses. Preferably, the camera optical lens 10 furthersatisfies a condition of 0.04≤d9/TTL≤0.08.

In an embodiment, an object-side surface of the sixth lens L6 is convexin the paraxial region, and an image-side surface of the sixth lens L6is concave in the paraxial region.

A central curvature radius of the object-side surface of the sixth lensL6 is defined as R11, a central curvature radius of the image-sidesurface of the sixth lens L6 is defined as R12, and the camera opticallens 10 further satisfies a condition of 0.73≤(R11+R12)/(R11−R12)≤19.63,which specifies a shape of the sixth lens L6. Within this range, adevelopment towards ultra-thin and wide-angle lenses would facilitatecorrecting a problem like the off-axis aberration. Preferably, thecamera optical lens 10 further satisfies a condition of1.17≤(R11+R12)/(R11−R12)≤15.71.

The total track length of the camera optical lens 10 is defined as TTL,an on-axis thickness of the sixth lens L6 is defined as d11, and thecamera optical lens 10 further satisfies a condition of0.02≤d11/TTL≤0.06. Within this range, this can facilitate achievingultra-thin lenses. Preferably, the camera optical lens 10 furthersatisfies a condition of 0.03≤d11/TTL≤0.05.

In an embodiment, an object-side surface of the seventh lens L7 isconvex in the paraxial region, and an image-side surface of the seventhlens L7 is concave in the paraxial region.

The focal length of the camera optical lens 10 is defined as f, a focallength of seventh lens L7 is defined as f7, and the camera optical lens10 further satisfies a condition of −11.01≤f7/f≤−2.81. Within thisrange, a refractive power is distributed appropriately, so that thesystem can attain the better imaging quality and lower sensitivity.Preferably, the camera optical lens 10 further satisfies a condition of−6.88≤f7/f≤−3.52.

A central curvature radius of the object-side surface of the seventhlens L7 is defined as R13, a central curvature radius of the image-sidesurface of the seventh lens L7 is defined as R14, and the camera opticallens 10 further satisfies a condition of 0.52≤(R13+R14)/(R13−R14)≤2.18,which specifies a shape of the seventh lens L7. Within this specifiedrange, the deflection of light passing through the lens can be eased andaberrations can be effectively reduced. Preferably, the camera opticallens 10 further satisfies a condition of 0.83≤(R13+R14)/(R13−R14)≤1.74.

The total track length of the camera optical lens 10 is defined as TTL,an on-axis thickness of the seventh lens L7 is defined as d13, and thecamera optical lens 10 further satisfies a condition of0.03≤d13/TTL≤0.12. Within this range, it is beneficial to achieveultra-thin lenses. Preferably, the camera optical lens 10 furthersatisfies a condition of 0.05≤d13/TTL≤0.10.

In an embodiment, an object-side surface of the eighth lens L8 is convexin the paraxial region, and an image-side surface of eighth lens L8 isconvex in the paraxial region.

The focal length of the camera optical lens 10 is defined as f, a focallength of eighth lens L8 is defined as f8, and the camera optical lens10 further satisfies a condition of 0.46≤f8/f≤1.46. In this way, arefractive power is distributed appropriately, so that the cameraoptical lens can attain a better imaging quality and a lowersensitivity. Preferably, the camera optical lens 10 further satisfies acondition of 0.74≤f8/f≤1.17.

A central curvature radius of the object-side surface of the eighth lensL8 is defined as R15, a central curvature radius of the image-sidesurface of the sixth lens L8 is defined as R16, and the camera opticallens 10 further satisfies a condition of 0.27≤(R15+R16)/(R15−R16)≤0.92,which specifies a shape of the eighth lens L8. Within this range, adevelopment towards ultra-thin and wide-angle lenses would facilitatecorrecting a problem like the off-axis aberration. Preferably, thecamera optical lens 10 further satisfies a condition of0.43≤(R15+R16)/(R15−R16)≤0.74.

The total track length of the camera optical lens 10 is defined as TTL,an on-axis thickness of the eighth lens L8 is defined as d15, and thecamera optical lens 10 further satisfies a condition of0.04≤d15/TTL≤0.15. Within this range, this can facilitate achievingultra-thin lenses. Preferably, the camera optical lens 10 furthersatisfies a condition of 0.07≤d15/TTL≤0.12.

In an embodiment, an object-side surface of the ninth lens L9 is convexin the paraxial region, and an image-side surface of ninth lens L9 isconcave in the paraxial region.

The focal length of the camera optical lens 10 is defined as f, a focallength of the ninth lens L9 is defined as f9, and the camera opticallens 10 further satisfies a condition of −3.70≤f9/f≤−0.94. In this way,a refractive power is distributed appropriately, so that the cameraoptical lens can attain a better imaging quality and a lowersensitivity. Preferably, the camera optical lens 10 further satisfies acondition of −2.31≤f9/f≤−1.18.

A central curvature radius of the object-side surface of the ninth lensL9 is defined as R17, a central curvature radius of the image-sidesurface of the ninth lens L9 is defined as R18, and the camera opticallens 10 further satisfies a condition of 1.36≤(R17+R18)/(R17−R18)≤4.89,which specifies a shape of the ninth lens L9. Within this range, adevelopment towards ultra-thin and wide-angle lenses would facilitatecorrecting a problem like the off-axis aberration. Preferably, thecamera optical lens 10 further satisfies a condition of2.17≤(R17+R18)/(R17−R18)≤3.92.

The total track length of the camera optical lens 10 is defined as TTL,an on-axis thickness of the ninth lens L9 is defined as d17, and thecamera optical lens 10 further satisfies a condition of0.03≤d17/TTL≤0.09. Within this range, this can facilitate achievingultra-thin lenses. Preferably, the camera optical lens 10 furthersatisfies a condition of 0.05≤d17/TTL≤0.07.

In an embodiment, an image height of the camera optical lens 10 isdefined as IH, the total track length of the camera optical lens 10 isdefined as TTL, and the camera optical lens 10 further satisfies acondition of TTL/IH≤2.05, thus facilitating to achieve ultra-thinlenses.

In an embodiment, an FOV (field of view) of the camera optical lens 10is greater than or equal to 120.00°, thereby achieving a wide-angle anda better imaging performance of the camera optical lens 10.

In an embodiment, an aperture value FNO of the camera optical lens 10 isless than or equal to 1.81, thereby achieving a large aperture and abetter imaging performance of the camera optical lens 10.

In an embodiment, the focal length of the camera optical lens 10 isdefined as f, a combined focal length of the first lens L1 and thesecond lens L2 is defined as f12, and the camera optical lens 10 furthersatisfies a condition of −5.49≤f12/f≤−1.07. In this range, aberrationand distortion of the camera optical lens 10 can be eliminated, a backfocal length of the camera optical lens 10 can be decreased, andminiaturization of the camera lens system can be maintained. Preferably,the camera optical lens 10 further satisfies a condition of−3.43≤f12/f≤−1.33.

It can be understood that, in other embodiments, for the first lens L1,the second lens L2, the third lens L3, the fourth lens L4, the fifthlens L5, the sixth lens L6, the seventh lens L7, the eighth lens L8, andthe ninth lens L9, surface profiles of an object-side surface and animage-side surface respectively may be configured in other convex orconcave arrangement.

When the above condition is satisfied, the camera optical lens 10 canmeet the design requirements of a large aperture, wide-angle andultra-thin in the case that a good optical performance is maintained.According to characteristics of the camera optical lens 10, the cameraoptical lens 10 is particularly suitable for mobile phone camera lenscomponents and WEB camera lenses composed of camera elements such as CCDand CMOS with high pixel.

In the following, examples will be used to describe the camera opticallens 10 of the present disclosure. The symbols recorded in each examplewill be described as follows. The focal length, on-axis distance,central curvature radius, on-axis thickness, inflexion point position,and arrest point position are all in units of mm.

TTL refers to a total track length (an on-axis distance from anobject-side surface of the first lens L1 to an image surface S1) inunits of mm.

Aperture value FNO refers to a ratio of an effective focal length of thecamera optical lens to an entrance pupil diameter.

Preferably, inflexion points and/or arrest points can be arranged on theobject-side surface and/or the image-side surface of the lens, so as tosatisfy the demand for high quality imaging. The description below maybe referred for specific implementations.

The design data of the camera optical lens 10 in the first embodiment ofthe present disclosure are shown in Table 1 and Table 2.

TABLE 1 R d nd vd S1 ∞  d0= −2.976 R1 −3.407  d1= 1.026 nd1 1.5444 v156.43 R2 8.697  d2= 0.785 R3 2.599  d3= 0.516 nd2 1.6610 v2 20.53 R43.257  d4= 0.570 R5 4.310  d5= 0.426 nd3 1.5444 v3 56.43 R6 −24.903  d6=0.054 R7 17.207  d7= 0.595 nd4 1.5444 v4 56.43 R8 −4.076  d8= 0.058 R9−4.714  d9= 0.440 nd5 1.5444 v5 56.43 R10 −2.683 d10= 0.101 R11 21.510d11= 0.340 nd6 1.6800 v6 18.40 R12 3.999 d12= 0.222 R13 438.689 d13=0.716 nd7 1.5444 v7 56.43 R14 6.884 d14= 0.119 R15 6.096 d15= 0.727 nd81.5444 v8 56.43 R16 −1.446 d16= 0.050 R17 1.758 d17= 0.505 nd9 1.6032 v928.29 R18 0.853 d18= 0.852 R19 ∞ d19= 0.298 ndg 1.5168 vg 64.17 R20 ∞d20= 0.308

In the table, meanings of various symbols will be described as follows:

S1: aperture;

R: curvature radius at a center of an optical surface;

R1: central curvature radius of the object-side surface of the firstlens L1;

R2: central curvature radius of the image-side surface of the first lensL1;

R3: central curvature radius of the object-side surface of the secondlens L2;

R4: central curvature radius of the image-side surface of the secondlens L2;

R5: central curvature radius of the object-side surface of the thirdlens L3;

R6: central curvature radius of the image-side surface of the third lensL3;

R7: central curvature radius of the object-side surface of the fourthlens L4;

R8: central curvature radius of the image-side surface of the fourthlens L4;

R9: central curvature radius of the object-side surface of the fifthlens L5;

R10: central curvature radius of the image-side surface of the fifthlens L5;

R11: central curvature radius of the object-side surface of the sixthlens L6;

R12: central curvature radius of the image-side surface of the sixthlens L6;

R13: central curvature radius of the object-side surface of the seventhlens L7;

R14: central curvature radius of the image-side surface of the seventhlens L7;

R15: central curvature radius of the object-side surface of the eighthlens L8;

R16: central curvature radius of the image-side surface of the eighthlens L8;

R17: central curvature radius of the object-side surface of the ninthlens L9;

R18: central curvature radius of the image-side surface of the ninthlens L9;

R19: central curvature radius of an object-side surface of the opticalfilter GF;

R20: central curvature radius of an image-side surface of the opticalfilter GF;

d: on-axis thickness of a lens, or an on-axis distance between lenses;

d0: on-axis distance from the aperture S1 to the object-side surface ofthe first lens L1;

d1: on-axis thickness of the first lens L1;

d2: on-axis distance from the image-side surface of the first lens L1 tothe object-side surface of the second lens L2;

d3: on-axis thickness of the second lens L2;

d4: on-axis distance from the image-side surface of the second lens L2to the object-side surface of the third lens L3;

d5: on-axis thickness of the third lens L3;

d6: on-axis distance from the image-side surface of the third lens L3 tothe object-side surface of the fourth lens L4;

d7: on-axis thickness of the fourth lens L4;

d8: on-axis distance from the image-side surface of the fourth lens L4to the object-side surface of the fifth lens L5;

d9: on-axis thickness of the fifth lens L5;

d10: on-axis distance from the image-side surface of the fifth lens L5to the object-side surface of the sixth lens L6;

d11: on-axis thickness of the sixth lens L6;

d12: on-axis distance from the image-side surface of the sixth lens L6to the object-side surface of the seventh lens L7;

d13: on-axis thickness of the seventh lens L7;

d14: on-axis distance from the image-side surface of the seventh lens L7to the object-side surface of the eighth lens L8;

d15: on-axis thickness of the seventh lens L8;

d16: on-axis distance from the image-side surface of the eighth lens L8to the object-side surface of the ninth lens L9;

d17: on-axis thickness of the ninth lens L9;

d18: on-axis distance from the image-side surface of the ninth lens L9to the object-side surface of the optical filter GF;

d19: on-axis thickness of the optical filter GF;

d20: on-axis distance from the image-side surface of the optical filterGF to the image surface S1;

nd: refractive index of a d line;

nd1: refractive index of the d line of the first lens L1;

nd2: refractive index of the d line of the second lens L2;

nd3: refractive index of the d line of the third lens L3;

nd4: refractive index of the d line of the fourth lens L4;

nd5: refractive index of the d line of the fifth lens L5;

nd6: refractive index of the d line of the sixth lens L6;

nd7: refractive index of the d line of the seventh lens L7;

nd8: refractive index of the d line of the eighth lens L8;

nd9: refractive index of the d line of the ninth lens L9;

ndg: refractive index of the d line of the optical filter GF;

vd: abbe number;

v1: abbe number of the first lens L1;

v2: abbe number of the second lens L2;

v3: abbe number of the third lens L3;

v4: abbe number of the fourth lens L4;

v5: abbe number of the fifth lens L5;

v6: abbe number of the sixth lens L6;

v7: abbe number of the seventh lens L7;

v8: abbe number of the eighth lens L8;

v9: abbe number of the ninth lens L9;

vg: abbe number of the optical filter GF.

Table 2 shows aspherical surface data of the camera optical lens 10 inthe first embodiment of the present disclosure.

TABLE 2 Conic coefficient Aspheric surface coefficients k A4 A6 A8 A10A12 R1 −2.1000E+01  2.8322E−02 −7.2253E−03   1.4653E−03 −2.1110E−04  2.1093E−05 R2  6.2979E+00  1.1013E−01 −7.4817E−02   8.1689E−02−7.6237E−02   4.9961E−02 R3 −3.3110E−01  3.2578E−02 −3.8337E−02  1.2172E−01 −2.2699E−01   2.9503E−01 R4  2.8836E+00  4.2944E−021.2259E−03  3.6450E−02 2.8310E−02 −9.7099E−02 R5 −4.2330E+00  3.4116E−031.1535E−02 −2.9400E−02 3.5443E−02 −1.9443E−02 R6  1.0000E+01 −7.9154E−027.4622E−02 −8.5779E−02 9.1890E−02 −4.9699E−02 R7 −1.0000E+01 −7.5284E−026.9607E−02 −6.8339E−02 5.2523E−02 −1.1387E−02 R8  7.7336E+00 −1.3625E−012.7789E−02  1.5610E−01 −2.9141E−01   2.8053E−01 R9 −4.1105E+00−1.2206E−01 −3.4913E−03   2.3679E−01 −4.7357E−01   5.3495E−01 R10 4.4035E−01 −6.0719E−02 1.8178E−01 −3.9542E−01 4.3124E−01 −2.6342E−01R11 −2.6739E+00 −1.9999E−01 2.7507E−01 −5.0534E−01 6.2081E−01−6.0388E−01 R12 −5.6713E+00 −1.2943E−01 1.2085E−01 −1.0595E−015.8639E−02 −1.7251E−02 R13 −1.0000E+01 −2.9077E−02 −8.4772E−03  1.4030E−02 1.0139E−02 −2.8149E−02 R14  3.2767E+00 −8.4793E−028.0221E−02 −1.8291E−01 1.8048E−01 −9.9845E−02 R15  3.4854E+00 9.8310E−03 3.9587E−02 −1.0337E−01 9.6365E−02 −5.1226E−02 R16−7.0147E−01  1.9870E−01 −1.4015E−01   1.4479E−01 −9.2597E−02  3.4039E−02 R17 −1.6859E+00 −1.5485E−01 3.1443E−02  1.1034E−02−8.8406E−03   2.4669E−03 R18 −3.1064E+00 −8.8032E−02 3.8127E−02−1.1104E−02 2.1605E−03 −2.8389E−04 Conic coefficient Aspheric surfacecoefficients k A14 A16 A18 A20 R1 −2.1000E+01 −1.4129E−06  6.0035E−08−1.4484E−09  1.4879E−11 R2  6.2979E+00 −2.1105E−02  5.4667E−03−7.8472E−04  4.7332E−05 R3 −3.3110E−01 −2.4523E−01  1.2422E−01−3.4684E−02  4.0301E−03 R4  2.8836E+00 1.0120E−01 −3.5473E−02 0.0000E+00 0.0000E+00 R5 −4.2330E+00 0.0000E+00 0.0000E+00 0.0000E+000.0000E+00 R6  1.0000E+01 6.3708E−03 0.0000E+00 0.0000E+00 0.0000E+00 R7−1.0000E+01 −7.8269E−03  3.0326E−03 0.0000E+00 0.0000E+00 R8  7.7336E+00−1.3086E−01  2.3124E−02 0.0000E+00 0.0000E+00 R9 −4.1105E+00−3.2728E−01  1.0186E−01 −1.2829E−02  0.0000E+00 R10  4.4035E−018.8595E−02 −1.2374E−02  0.0000E+00 0.0000E+00 R11 −2.6739E+00 4.6321E−01−2.4472E−01  7.4171E−02 −9.4382E−03  R12 −5.6713E+00 2.1535E−035.1997E−05 −2.7767E−05  0.0000E+00 R13 −1.0000E+01 2.0491E−02−7.0798E−03  1.2086E−03 −8.2519E−05  R14  3.2767E+00 3.4174E−02−7.2886E−03  8.9623E−04 −4.8498E−05  R15  3.4854E+00 1.6322E−02−3.0726E−03  3.1462E−04 −1.3481E−05  R16 −7.0147E−01 −7.5222E−03 9.9795E−04 −7.3517E−05  2.3166E−06 R17 −1.6859E+00 −3.7070E−04 3.1880E−05 −1.4831E−06  2.9051E−08 R18 −3.1064E+00 2.4781E−05−1.3720E−06  4.3541E−08 −6.0306E−10 

Here, K is a conic coefficient, and A4, A6, A8, A10, A12, A14, A16, A18and A20 are aspheric surface coefficients.

y=(x ² /R)/{1+[1−(k+1)(x ² /R ²)]^(1/2) }+A4x ⁴ +A6x ⁶ +A8x ⁸ +A10x ¹⁰+A12x ¹² +A14x ¹⁴ +A16x ¹⁶ +A18x ¹⁸ +A20x ²⁰  (1)

Here, x denotes a vertical distance between a point on an aspheric curveand an optical axis, and y denotes a depth of a aspheric surface (i.e. avertical distance between a point on an aspheric surface that is x awayfrom the optical axis, and a tangent plane tangent to an vertex of theoptical axis on the aspheric surface).

For convenience, an aspheric surface of each lens surface uses theaspheric surfaces shown in the above formula (1). However, the presentdisclosure is not limited to the aspherical polynomials form shown inthe formula (1).

Table 3 and Table 4 show design data of inflexion points and arrestpoints of the camera optical lens 10 according to the first embodimentof the present disclosure. P1R1 and P1R2 respectively represent theobject-side surface and the image-side surface of the first lens L1,P2R1 and P2R2 respectively represent the object-side surface and theimage-side surface of the second lens L2, P3R1 and P3R2 respectivelyrepresent the object-side surface and the image-side surface of thethird lens L3, P4R1 and P4R2 respectively represent the object-sidesurface and the image-side surface of the fourth lens L4, P5R1 and P5R2respectively represent the object-side surface and the image-sidesurface of the fifth lens L5, P6R1 and P6R2 respectively represent theobject-side surface and the image-side surface of the sixth lens L6,P7R1 and P7R2 respectively represent the object-side surface and theimage-side surface of the seventh lens L7. P8R1 and P8R2 respectivelyrepresent the object-side surface and the image-side surface of theeighth lens L8, P9R1 and P9R2 respectively represent the object-sidesurface and the image-side surface of the ninth lens L9. The data in thecolumn named “inflexion point position” refer to vertical distances frominflexion points arranged on each lens surface to the optic axis of thecamera optical lens 10. The data in the column named “arrest pointposition” refer to vertical distances from arrest points arranged oneach lens surface to the optical axis of the camera optical lens 10.

TABLE 3 Number(s) of Inflexion point Inflexion point Inflexion pointInflexion point inflexion points position 1 position 2 position 3position 4 P1R1 1 0.695 / / / P1R2 1 1.825 / / / P2R1 1 1.345 / / / P2R20 / / / / P3R1 0 / / / / P3R2 0 / / / / P4R1 1 0.285 / / / P4R2 0 / / // P5R1 1 0.925 / / / P5R2 1 1.145 / / / P6R1 1 0.145 / / / P6R2 3 0.4851.335 1.685 / P7R1 3 0.085 1.395 1.795 / P7R2 2 0.425 1.705 / / P8R1 20.955 2.095 / / P8R2 4 0.725 1.375 2.165 2.355 P9R1 3 0.585 2.285 2.875/ P9R2 1 0.705 / / /

TABLE 4 Number(s) of Arrest point Arrest point arrest points position 1position 2 P1R1 1 1.535 / P1R2 0 / / P2R1 0 / / P2R2 0 / / P3R1 0 / /P3R2 0 / / P4R1 1 0.515 / P4R2 0 / / P5R1 0 / / P5R2 0 / / P6R1 1 0.255/ P6R2 1 0.965 / P7R1 2 0.135 1.735 P7R2 1 0.705 / P8R1 1 1.405 / P8R2 0/ / P9R1 1 1.265 / P9R2 1 2.225 /

FIG. 2 and FIG. 3 illustrate a longitudinal aberration and a lateralcolor of light with wavelengths of 650 nm, 610 nm, 555 nm, 510 nm and470 nm after passing the camera optical lens 10 according to the firstembodiment, respectively. FIG. 4 illustrates a field curvature and adistortion of light with a wavelength of 555 nm after passing the cameraoptical lens 10 according to the first embodiment. In FIG. 4, a fieldcurvature S is a field curvature in a sagittal direction, and T is afield curvature in a meridional direction.

Table 13 in the following shows various values of first, second andthird embodiments and values corresponding to parameters which arespecified in the above conditions.

As shown in Table 13, the first embodiment satisfies the aboveconditions.

In this Embodiment, an entrance pupil diameter (ENPD) of the cameraoptical lens is 1.293 mm, an image height (IH) of 1.0 H is 4.260 mm, afield of view (FOV) in a diagonal direction is 120.00°. Thus, the cameraoptical lens meets the design requirements of a large aperture,wide-angle and ultra-thin. Its on-axis and off-axis aberrations arefully corrected, thereby achieving excellent optical characteristics.

Second Embodiment

FIG. 5 shows a camera optical lens 20 of the second embodiment of thepresent disclosure, the second embodiment is basically the same as thefirst embodiment and involves symbols having the same meanings as thefirst embodiment, and only differences therebetween will be described inthe following.

The object-side surface of the fourth lens L4 is concave in the paraxialregion.

Table 5 and Table 6 show design data of the camera optical lens 20 inthe second embodiment of the present disclosure.

TABLE 5 R d nd vd S1 ∞  d0= −2.458 R1 −4.327  d1= 1.114 nd1 1.5444 v156.43 R2 1.259  d2= 0.050 R3 1.146  d3= 0.512 nd2 1.6610 v2 20.53 R42.255  d4= 0.722 R5 4.074  d5= 0.745 nd3 1.5444 v3 56.43 R6 −4.596  d6=0.100 R7 −26.140  d7= 0.504 nd4 1.5444 v4 56.43 R8 −3.544  d8= 0.050 R9−4.191  d9= 0.430 nd5 1.5444 v5 56.43 R10 −3.823 d10= 0.050 R11 3.184d11= 0.340 nd6 1.6800 v6 18.40 R12 2.732 d12= 0.148 R13 28.878 d13=0.614 nd7 1.5444 v7 56.43 R14 4.423 d14= 0.309 R15 4.859 d15= 0.783 nd81.5444 v8 56.43 R16 −1.437 d16= 0.050 R17 1.854 d17= 0.501 nd9 1.6032 v928.29 R18 0.855 d18= 0.852 R19 ∞ d19= 0.298 ndg 1.5168 vg 64.17 R20 ∞d20= 0.302

Table 6 shows aspherical surface data of each lens of the camera opticallens 20 in the second embodiment of the present disclosure.

TABLE 6 Conic coefficient Aspheric surface coefficients k A4 A6 A8 A10A12 R1 −1.8383E+01  3.5009E−02 −1.0959E−02 2.7671E−03 −5.1256E−046.7845E−05 R2 −8.2042E+00 −6.6894E−01  2.4139E+00 −4.4732E+00  5.5300E+00 −4.5952E+00  R3 −1.8603E+00 −8.7839E−01  2.4950E+00−3.8230E+00   3.5544E+00 −1.5552E+00  R4  2.0109E+00 −1.4069E−01 8.8865E−01 −2.2737E+00   4.1632E+00 −4.7141E+00  R5 −8.0767E+00 1.1989E−02 −2.9297E−03 −1.8130E−02   1.2558E−02 −1.1872E−02  R6 3.4009E+00 −3.4222E−02 −8.1502E−02 1.9369E−01 −2.3410E−01 1.2571E−01 R7−9.9895E+00 −1.9940E−02 −9.0885E−02 1.8602E−01 −1.7357E−01 7.8437E−02 R8 4.9512E+00 −6.1832E−02 −2.8299E−01 6.5649E−01 −7.3025E−01 5.2238E−01 R9−8.3013E+00 −4.5243E−02 −2.9549E−01 9.4861E−01 −1.6064E+00 1.6202E+00R10  3.0775E+00 −4.4403E−01  1.2736E+00 −1.6464E+00   1.1175E+00−4.3505E−01  R11 −9.9990E+00 −5.4688E−01  1.1881E+00 −1.9501E+00  2.5202E+00 −2.4920E+00  R12 −3.9887E+00 −1.7793E−02 −2.6327E−014.9632E−01 −4.5368E−01 2.3359E−01 R13  8.9848E+00  8.3557E−02−9.3153E−02 −1.2260E−01   3.4532E−01 −3.3161E−01  R14  3.5335E+00−8.5511E−02 −6.9037E−02 1.3623E−01 −1.2787E−01 7.5011E−02 R15 3.0298E+00  1.0102E−01 −1.6173E−01 1.3251E−01 −6.5923E−02 1.8950E−02R16 −7.0448E−01  3.5208E−01 −3.2142E−01 2.6081E−01 −1.3875E−014.6075E−02 R17 −1.2521E+00 −1.2815E−01  1.2134E−02 2.4840E−02−1.6224E−02 4.9514E−03 R18 −4.2139E+00 −4.3919E−02  7.8377E−031.4517E−03 −1.1681E−03 2.8930E−04 Conic coefficient Aspheric surfacecoefficients k A14 A16 A18 A20 R1 −1.8383E+01 −6.1542E−06 3.6167E−07−1.2395E−08  1.8882E−10 R2 −8.2042E+00  2.5039E+00 −8.5290E−01 1.6435E−01 −1.3666E−02  R3 −1.8603E+00 −2.6549E−01 6.4120E−01−2.7374E−01  3.9690E−02 R4  2.0109E+00  3.0096E+00 −8.0677E−01 0.0000E+00 0.0000E+00 R5 −8.0767E+00  0.0000E+00 0.0000E+00 0.0000E+000.0000E+00 R6  3.4009E+00 −2.7275E−02 0.0000E+00 0.0000E+00 0.0000E+00R7 −9.9895E+00 −1.2601E−02 0.0000E+00 0.0000E+00 0.0000E+00 R8 4.9512E+00 −2.0652E−01 3.3227E−02 0.0000E+00 0.0000E+00 R9 −8.3013E+00−9.2684E−01 2.7882E−01 −3.4561E−02  0.0000E+00 R10  3.0775E+00 9.8626E−02 −1.0570E−02  0.0000E+00 0.0000E+00 R11 −9.9990E+00 1.6706E+00 −6.9882E−01  1.6461E−01 −1.6683E−02  R12 −3.9887E+00−6.9230E−02 1.1112E−02 −7.5316E−04  0.0000E+00 R13  8.9848E+00 1.6816E−01 −4.7868E−02  7.2517E−03 −4.5707E−04  R14  3.5335E+00−2.8039E−02 6.3441E−03 −7.7693E−04  3.8974E−05 R15  3.0298E+00−2.9235E−03 1.6018E−04 1.2093E−05 −1.4218E−06  R16 −7.0448E−01−9.5561E−03 1.2087E−03 −8.5627E−05  2.6157E−06 R17 −1.2521E+00−8.6522E−04 8.8417E−05 −4.9327E−06  1.1647E−07 R18 −4.2139E+00−3.8207E−05 2.8580E−06 −1.1425E−07  1.9006E−09

Table 7 and table 8 show design data of inflexion points and arrestpoints of each lens of the camera optical lens 20 lens according to thesecond embodiment of the present disclosure.

TABLE 7 Number(s) of Inflexion point Inflexion point Inflexion pointinflexion points position 1 position 2 position 3 P1R1 1 0.685 / / P1R20 / / / P2R1 1 1.285 / / P2R2 1 1.065 / / P3R1 1 0.795 / / P3R2 0 / / /P4R1 1 1.055 / / P4R2 1 0.945 / / P5R1 2 0.935 1.305 / P5R2 1 1.205 / /P6R1 1 0.255 / / P6R2 3 0.575 1.455 1.715 P7R1 3 0.645 1.435 1.755 P7R22 0.455 1.685 / P8R1 2 1.165 2.135 / P8R2 3 0.585 1.425 2.415 P9R1 20.655 2.875 / P9R2 2 0.715 3.545 /

TABLE 8 Number of Arrest point Arrest point Arrest point arrest pointsposition 1 position 2 position 3 P1R1 1 1.435 / / P1R2 0 / / / P2R1 0 // / P2R2 0 / / / P3R1 0 / / / P3R2 0 / / / P4R1 0 / / / P4R2 0 / / /P5R1 2 1.275 1.315 / P5R2 0 / / / P6R1 1 0.525 / / P6R2 3 1.215 1.6551.745 P7R1 3 1.075 1.635 1.805 P7R2 1 0.805 / / P8R1 1 1.625 / / P8R2 21.315 1.525 / P9R1 1 1.695 / / P9R2 1 2.455 / /

FIG. 6 and FIG. 7 illustrate a longitudinal aberration and a lateralcolor of light with wavelengths of 650 nm, 610 nm, 555 nm, 510 nm and470 nm after passing the camera optical lens 20 according to the secondembodiment. FIG. 8 illustrates a field curvature and a distortion oflight with a wavelength of 555 nm after passing the camera optical lens20 according to the second embodiment. A field curvature S in FIG. 8 isa field curvature in a sagittal direction, and T is a field curvature ina meridian direction.

As shown in Table 13, the second embodiment satisfies the aboveconditions.

In this embodiment, an entrance pupil diameter (ENPD) of the cameraoptical lens 20 is 1.269 mm, an image height (IH) of 1.0H is 4.260 mm, afield of view (FOV) in a diagonal direction is 122.72°. Thus, the cameraoptical lens 20 meets the design requirements of a large aperture,wide-angle and ultra-thin. Its on-axis and off-axis aberrations arefully corrected, thereby achieving excellent optical characteristics.

Third Embodiment

FIG. 9 shows a camera optical lens 30 of the third embodiment of thepresent disclosure, the third embodiment is basically the same as thefirst embodiment and involves symbols having the same meanings as thefirst embodiment, and only differences therebetween will be described inthe following.

The object-side surface of the fifth lens L5 is convex in the paraxialregion.

Table 9 and Table 10 show design data of the camera optical lens 30 inthe embodiment of the present disclosure.

TABLE 9 R d nd vd S1 ∞  d0= −2.671 R1 −5.309  d1= 1.104 nd1 1.5444 v156.43 R2 2.180  d2= 0.269 R3 2.040  d3= 0.473 nd2 1.6610 v2 20.53 R42.994  d4= 0.768 R5 4.904  d5= 0.433 nd3 1.5444 v3 56.43 R6 −7.577  d6=0.276 R7 81.371  d7= 0.508 nd4 1.5444 v4 56.43 R8 −3.823  d8= 0.050 R957.063  d9= 0.576 nd5 1.5444 v5 56.43 R10 −11.298 d10= 0.050 R11 3.185d11 =  0.340 nd6 1.6800 v6 18.40 R12 2.148 d12= 0.143 R13 24.241 d13=0.503 nd7 1.5444 v7 56.43 R14 4.475 d14= 0.176 R15 5.068 d15= 0.856 nd81.5444 v8 56.43 R16 −1.430 d16= 0.050 R17 1.639 d17= 0.506 nd9 1.6032 v928.29 R18 0.87 d18= 0.852 R19 ∞ d19= 0.298 ndg 1.5168 vg 64.17 R20 ∞d20= 0.341

Table 10 shows aspherical surface data of each lens of the cameraoptical lens 30 in the third embodiment of the present disclosure.

TABLE 10 Conic coefficient Aspheric surface coefficients k A4 A6 A8 A10A12 R1 −3.0227E+01  2.9744E−02 −9.4248E−03   2.5397E−03 −5.0104E−04  6.8818E−05 R2 −3.2689E+00  1.4411E−02 1.2271E−01 −2.2382E−01 2.9249E−01−2.5146E−01 R3 −8.4161E−01 −8.6834E−02 2.9369E−01 −5.2490E−01 7.3389E−01−5.9554E−01 R4  4.0127E+00 −5.2197E−02 5.0868E−01 −1.4083E+00 2.8337E+00−3.3289E+00 R5  3.8799E+00 −8.5844E−03 2.6807E−02 −7.5846E−02 1.0290E−01−5.1698E−02 R6 −1.0000E+01 −4.6586E−02 7.3899E−04 −3.6751E−03 2.0991E−02−2.9154E−02 R7 −1.0000E+01 −3.8309E−02 2.1777E−02 −9.8007E−02 1.9483E−01−1.3354E−01 R8  5.0795E+00 −8.5821E−02 −2.9700E−01   9.5182E−01−1.3901E+00   1.3059E+00 R9  1.0000E+01 −4.4220E−02 −2.9562E−01  6.4273E−01 −6.8614E−01   4.9385E−01 R10  9.7666E+00 −2.8878E−015.8491E−01 −6.7752E−01 3.8004E−01 −9.3489E−02 R11 −8.3811E+00−4.9541E−01 6.8237E−01 −6.1725E−01 5.0752E−01 −5.6129E−01 R12−6.8568E+00 −1.3713E−01 −2.3585E−02   2.3402E−01 −2.6282E−01  1.4196E−01 R13  1.0000E+01  4.3208E−02 −1.1806E−01   4.4849E−021.2317E−01 −1.7514E−01 R14  3.5317E+00 −1.1761E−01 5.7722E−03 4.9137E−02 −4.7399E−02   2.2487E−02 R15  2.5858E+00  3.4693E−02−1.4467E−01   1.7811E−01 −1.2251E−01   5.1638E−02 R16 −7.1771E−01 2.0411E−01 −1.3233E−01   1.1705E−01 −6.6010E−02   2.1946E−02 R17−1.1410E+00 −2.2717E−01 1.6595E−01 −8.2346E−02 2.6968E−02 −5.8255E−03R18 −4.0087E+00 −8.8216E−02 6.6000E−02 −3.1011E−02 9.0474E−03−1.6750E−03 Conic coefficient Aspheric surface coefficients k A14 A16A18 A20 R1 −3.0227E+01 −6.3405E−06  3.7337E−07 −1.2696E−08  1.8993E−10R2 −3.2689E+00 1.4905E−01 −5.9871E−02  1.4204E−02 −1.4490E−03  R3−8.4161E−01 2.3588E−01 −2.2961E−03  −2.9569E−02  6.6238E−03 R4 4.0127E+00 2.1464E+00 −5.7328E−01  0.0000E+00 0.0000E+00 R5  3.8799E+000.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 R6 −1.0000E+01 1.6808E−02−6.4459E−03  0.0000E+00 0.0000E+00 R7 −1.0000E+01 3.0902E−02 0.0000E+000.0000E+00 0.0000E+00 R8  5.0795E+00 −7.3934E−01  2.2250E−01−2.7000E−02  0.0000E+00 R9  1.0000E+01 −2.3572E−01  6.5309E−02−7.8654E−03  0.0000E+00 R10  9.7666E+00 5.2526E−03 8.4959E−04 0.0000E+000.0000E+00 R11 −8.3811E+00 4.9231E−01 −2.4919E−01  6.5011E−02−6.8123E−03  R12 −6.8568E+00 −4.1812E−02  6.5013E−03 −4.2133E−04 0.0000E+00 R13  1.0000E+01 1.0149E−01 −3.0655E−02  4.7740E−03−3.0445E−04  R14  3.5317E+00 −6.1471E−03  8.5846E−04 −2.7047E−05 −3.8391E−06  R15  2.5858E+00 −1.3896E−02  2.3127E−03 −2.1412E−04 8.3474E−06 R16 −7.1771E−01 −4.4304E−03  5.3951E−04 −3.6652E−05 1.0726E−06 R17 −1.1410E+00 8.1662E−04 −7.1065E−05  3.4689E−06−7.2241E−08  R18 −4.0087E+00 1.9597E−04 −1.3973E−05  5.5153E−07−9.2001E−09 

Table 11 and Table 12 show design data inflexion points and arrestpoints of the respective lenses in the camera optical lens 30 accordingto the third embodiment of the present disclosure.

TABLE 11 Number(s) of Inflexion point Inflexion point Inflexion pointinflexion points position 1 position 2 position 3 P1R1 1 0.655 / / P1R20 / / / P2R1 1 1.265 / / P2R2 1 1.085 / / P3R1 0 / / / P3R2 0 / / / P4R12 0.175 0.815 / P4R2 1 0.885 / / P5R1 3 0.165 0.885 1.305 P5R2 2 1.2451.365 / P6R1 1 0.255 / / P6R2 3 0.485 1.545 1.665 P7R1 3 0.535 1.4651.755 P7R2 2 0.435 1.705 / P8R1 2 1.125 1.965 / P8R2 3 0.725 1.525 2.365P9R1 2 0.805 2.945 / P9R2 2 0.735 3.295 /

TABLE 12 Number of Arrest point Arrest point arrest points position 1position 2 P1R1 1 1.355 / P1R2 0 / / P2R1 0 / / P2R2 0 / / P3R1 0 / /P3R2 0 / / P4R1 2 0.285 1.065 P4R2 0 / / P5R1 2 0.255 1.195 P5R2 0 / /P6R1 1 0.485 / P6R2 1 1.215 / P7R1 2 1.065 1.705 P7R2 1 0.805 / P8R1 11.495 / P8R2 0 / / P9R1 1 2.315 / P9R2 1 2.385 /

FIG. 10 and FIG. 11 illustrate a longitudinal aberration and a lateralcolor of light with wavelengths of 650 nm, 610 nm, 555 nm, 510 nm and470 nm after passing the camera optical lens 30 according to the thirdembodiment, respectively. FIG. 12 illustrates a field curvature and adistortion of light with a wavelength of 555 nm after passing the cameraoptical lens 30 according to the third embodiment. In FIG. 12, a fieldcurvature S is a field curvature in a sagittal direction, and T is afield curvature in a meridional direction.

Table 13 in the following lists values corresponding to the respectiveconditions in the embodiment according to the above conditions.Obviously, the camera optical lens 30 in the embodiment satisfies theabove conditions.

In this embodiment, an entrance pupil diameter (ENPD) of the cameraoptical lens 30 is 1.221 mm, an image height (IH) of 1.0 H is 4.260 mm,a field of view (FOV) in a diagonal direction is 125.00°. Thus, thecamera optical lens 30 meets the design requirements of a largeaperture, wide-angle and ultra-thin. Its on-axis and off-axisaberrations are fully corrected, thereby achieving excellent opticalcharacteristics.

TABLE 13 Parameters and Fist Second Third conditions embodimentembodiment embodiment f1/f −1.87 −0.73 −1.22 d5/d6 7.89 7.45 1.57 f6/f−3.10 −17.67 −5.04 f 2.327 2.285 2.198 f1 −4.352 −1.668 −2.690 f2 14.6842.947 8.011 f3 6.762 4.078 5.519 f4 6.094 7.449 6.701 f5 10.595 56.45117.319 f6 −7.211 −40.364 −11.079 f7 −12.814 −9.648 −10.141 f8 2.2152.124 2.142 f9 −3.456 −3.222 −4.067 f12 −6.382 −3.653 −4.020 FNO 1.801.80 1.80 TTL 8.708 8.474 8.572 IH 4.260 4.260 4.260 FOV 120.00° 122.72°125.00°

It can be appreciated by one having ordinary skill in the art that thedescription above is only embodiments of the present disclosure. Inpractice, one having ordinary skill in the art can make variousmodifications to these embodiments in forms and details withoutdeparting from the scope of the present disclosure.

What is claimed is:
 1. A camera optical lens, comprising nine lenses,the nine lenses from an object side to an image side being: a first lenswith a negative refractive power; a second lens with a positiverefractive power; a third lens with a positive refractive power; afourth lens with a positive refractive power; a fifth lens with apositive refractive power; a sixth lens with a negative refractivepower; a seventh lens with a negative refractive power; an eighth lenswith a positive refractive power; and an ninth lens with a negativerefractive power; wherein the camera optical lens satisfies followingconditions:−1.90≤f1/f≤−0.70; 1.50≤d5/d6≤8.00; −18.00≤f6/f≤−3.00; where f denotes afocal length of the camera optical lens; f1 denotes a focal length ofthe first lens; f6 denotes a focal length of the sixth lens; d5 denotesan on-axis thickness of the third lens; d6 denotes an on-axis distancefrom an image-side surface of the third lens to an object-side surfaceof the fourth lens.
 2. The camera optical lens according to claim 1,further satisfying following conditions:1.50≤f5/f4≤8.00; where f4 denotes a focal length of the fourth lens; f5denotes a focal length of the fifth lens.
 3. The camera optical lensaccording to claim 1, further satisfying following conditions:−0.87≤(R1+R2)/(R1−R2)≤0.82; 0.06≤d1/TTL≤0.20; where R1 denotes a centralcurvature radius of an object-side surface of the first lens; R2 denotesa central curvature radius of an image-side surface of the first lens;d1 denotes an on-axis thickness of the first lens; TTL denotes a totaltrack length of the camera optical lens.
 4. The camera optical lensaccording to claim 1, further satisfying following conditions:0.64≤f2/f≤9.47; −17.80≤(R3+R4)/(R3−R4)≤−2.04; 0.03≤d3/TTL≤0.09; where f2denotes a focal length of the second lens; R3 denotes a centralcurvature radius of an object-side surface of the second lens; R4denotes a central curvature radius of an image-side surface of thesecond lens; d3 denotes an on-axis thickness of the second lens; TTLdenotes a total track length of the camera optical lens.
 5. The cameraoptical lens according to claim 1, further satisfying followingconditions:0.89≤f3/f≤4.36; −1.41≤(R5+R6)/(R5−R6)≤−0.04; 0.02≤d5/TTL≤0.13; where f3denotes a focal length of the third lens; R5 denotes a central curvatureradius of an object-side surface of the third lens; R6 denotes a centralcurvature radius of an image-side surface of the third lens; TTL denotesa total track length of the camera optical lens.
 6. The camera opticallens according to claim 1, further satisfying following conditions:1.31≤f4/f≤4.89; 0.31≤(R7+R8)/(R7−R8)≤1.97; 0.03≤d7/TTL≤0.10; where f4denotes a focal length of the fourth lens; R7 denotes a centralcurvature radius of an object-side surface of the fourth lens; R8denotes a central curvature radius of an image-side surface of thefourth lens; d7 denotes an on-axis thickness of the fourth lens; TTLdenotes a total track length of the camera optical lens.
 7. The cameraoptical lens according to claim 1, further satisfying followingconditions:2.28≤f5/f≤37.06; 0.33≤(R9+R10)/(R9−R10)≤32.67; 0.03≤d9/TTL≤0.10; wheref5 denotes a focal length of the fifth lens; R9 denotes a centralcurvature radius of an object-side surface of the fifth lens; R10denotes a central curvature radius of an image-side surface of the fifthlens; d9 denotes an on-axis thickness of the fifth lens; TTL denotes atotal track length of the camera optical lens.
 8. The camera opticallens according to claim 1, further satisfying following conditions:0.73≤(R11+R12)/(R11−R12)≤19.63; 0.02≤d11/TTL≤0.06; where R11 denotes acentral curvature radius of an object-side surface of the sixth lens;R12 denotes a central curvature radius of an image-side surface of thesixth lens; d11 denotes an on-axis thickness of the sixth lens; TTLdenotes a total track length of the camera optical lens.
 9. The cameraoptical lens according to claim 1, further satisfying followingconditions:−11.01≤f7/f≤−2.81; 0.52≤(R13+R14)/(R13−R14)≤2.18;0.03≤d13/TTL≤0.12; where f7 denotes a focal length of the seventh lens;R13 denotes a central curvature radius of an object-side surface of theseventh lens; R14 denotes a central curvature radius of an image-sidesurface of the seventh lens; d13 denotes an on-axis thickness of theseventh lens; TTL denotes a total track length of the camera opticallens.
 10. The camera optical lens according to claim 1, furthersatisfying following conditions:0.46≤f8/f≤1.46; 0.27≤(R15+R16)/(R15−R16)≤0.92; 0.04≤d15/TTL≤0.15; wheref8 denotes a focal length of the eighth lens; R15 denotes a centralcurvature radius of an object-side surface of the eighth lens; R16denotes a central curvature radius of an image-side surface of theeighth lens; d15 denotes an on-axis thickness of the eighth lens; TTLdenotes a total track length of the camera optical lens.
 11. The cameraoptical lens according to claim 1, further satisfying followingconditions:−3.70≤f9/f≤−0.94;1.36≤(R17+R18)/(R17−R18)≤4.89; 0.03≤d17/TTL≤0.09; wheref9 denotes a focal length of the ninth lens; R17 denotes a centralcurvature radius of an object-side surface of the ninth lens; R18denotes a central curvature radius of an image-side surface of the ninthlens; d17 denotes an on-axis thickness of the ninth lens; TTL denotes atotal track length of the camera optical lens.